4. If the figures below are similar with a scale factor
of 2:3, find the value of x.

Answer:
x = 63
Step-by-step explanation:
Using proportion to solve for x
[tex]\frac{42}{x}[/tex] = [tex]\frac{2}{3}[/tex] ( cross- multiply )
2x = 126 ( divide both sides by 2 )
x = 63